\documentclass[a4paper,10pt]{article}
\usepackage[utf8x]{inputenc}

%opening
\title{}
\author{}

\begin{document}


\section*{}
\begin{table}
\begin{tabular}{|l|l|c|r|}
\hline
Nom & Prenom & Sexe & SITUATION\\
\hline
Paul & Lopes &\multicolumn{2}{|c|}{multicolumn}\\
\hline
Ardo & SALL &{\bf H } & {\bf Marie} \\
\hline
JONATHAN & BIZET & {\bf H} & {\bf Celibataire}\\
\hline
LOPES & JOSEPH & {\bf H} & {\bf Marie}\\
\hline
\end{tabular}
\caption{ TABLEAU D' ETUDIANT}
\end{table}
\end{document}

